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Re: [Shop-talk] cove (or 'dish') style cut on a piece of wood.

To: shop-talk@autox.team.net
Subject: Re: [Shop-talk] cove (or 'dish') style cut on a piece of wood.
From: Jimmie Mayfield via Shop-talk <shop-talk@autox.team.net>
Date: Sun, 10 Feb 2019 19:23:04 -0500
Delivered-to: mharc@autox.team.net
Delivered-to: shop-talk@autox.team.net
References: <OF6429C4D7.17665CC1-ON85258362.006494B1-85258362.0065C555@mail.megageek.com> <CAE16_w2CyhmNxYWuD8U8=LQq6euY+cwEGxP7DxwfeDdTu6DG5Q@mail.gmail.com>
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Looks like I missed the original message.

I've never done this but here what I'd try:

1. Use a router with a carbide straight bit and a circle-cutting jig to 
cut concentric circles starting with the outer edge of the bowl and 
moving inward.  You'll need to figure out the depth for each successive 
circle depending on how steep you want the bowl to be.

2. Use a chisel or a forstner bit in your drill press to remove the 
centermost section (the piece that you screwed your circle jig into).  
At this point, you'll have a "step" bowl, similar to what a strip mine 
might look like.

3. To smooth out the steps, I'd use a 4 1/2" angle grinder and a flap 
grinding disc.  In fact, as I write this, I suspect you could make the 
entire bowl using just the angle grinder.  You can buy a sculpting disk 
for an angle grinder that has chain saw teeth.  Use that to shape the 
bowl and the flap disk to smooth the gouges.



On 02/10/19 13:17, Philip Ethier via Shop-talk wrote:
> You need a buddy with a giant lathe.
>
> On Thu, Dec 13, 2018 at 1:33 PM eric--- via Shop-talk 
>
>     I'm making a piece of furniture that needs to have a rounded
>     'dish' cut into it.  Like a cove cut on a board, but just in a
>     circle.  Think of a change plate where there is a bowl cutout on a
>     board.
>
>     The cut would look like if you had a table saw blade about 1/2"
>     out of the table, then put a piece of wood straight down on it and
>     twisted it in a circle.  I know that wouldn't work (and would be
>     HUGELY unsafe.)
>
>     Here is an image of the cut I am trying to make (there are two of
>     them on this valet..
>
>     
> https://www.etsy.com/listing/229799235/mens-valet-mens-valet-change-dish-modern
>
>
>     Anyone know how to do that? I can only find ways to make a cove
>     lengthwise in a board.  The piece isn't small enough to put in a
>     lathe (but I thought about making an insert, and that is my last
>     resort, but I would rather not do that.)
>
>     Thanks in advance!
>
>     Sent from my Commodore 64 on a 2400 Baud Modem.
>     Tech Viper
>     "Be as beneficent as the sun or the sea, but if your rights as a
>     rational being are trenched on, die on the first inch of your
>     territory." Ralph Waldo Emerson
>     _______________________________________________
>
>     Donate: http://www.team.net/donate.html
>     Suggested annual donation  $12.96
>     Archive: http://www.team.net/pipermail/shop-talk
>
>     Unsubscribe/Manage:
>     http://autox.team.net/mailman/options/shop-talk/pethier7@gmail.com
>
>
>
> -- 
> Phil Ethier West Side Saint Paul Minnesota USA
> 1973 Triumph Stag LE22439UBW "uncle jack", Sapphire Blue
> 2004 Suburban 8.1, Sport Red
> 2005 Lotus Elise, Bordeaux Red Pearl
> 2006 Gulf Stream Conquest Super C, 8.1, White
> 2017 Ford Fusion SE 2.0 Turbo, Oxford White
> http://www.mnautox.com <http://www.mnautox.com/>
>
>
> _______________________________________________
>
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> Donate: http://www.team.net/donate.html
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>


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    <div class="moz-cite-prefix">Looks like I missed the original
      message.<br>
      <br>
      I've never done this but here what I'd try:<br>
      <br>
      1. Use a router with a carbide straight bit and a circle-cutting
      jig to cut concentric circles starting with the outer edge of the
      bowl and moving inward.  You'll need to figure out the depth for
      each successive circle depending on how steep you want the bowl to
      be.<br>
      <br>
      2. Use a chisel or a forstner bit in your drill press to remove
      the centermost section (the piece that you screwed your circle jig
      into).  At this point, you'll have a "step" bowl, similar to what
      a strip mine might look like.  <br>
      <br>
      3. To smooth out the steps, I'd use a 4 1/2" angle grinder and a
      flap grinding disc.  In fact, as I write this, I suspect you could
      make the entire bowl using just the angle grinder.  You can buy a
      sculpting disk for an angle grinder that has chain saw teeth.  Use
      that to shape the bowl and the flap disk to smooth the gouges.<br>
      <br>
      <br>
      <br>
      On 02/10/19 13:17, Philip Ethier via Shop-talk wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAE16_w2CyhmNxYWuD8U8=LQq6euY+cwEGxP7DxwfeDdTu6DG5Q@mail.gmail.com">
      <meta http-equiv="content-type" content="text/html; charset=utf-8">
      <div dir="ltr">You need a buddy with a giant lathe.</div>
      <br>
      <div class="gmail_quote">
        <div dir="ltr" class="gmail_attr">On Thu, Dec 13, 2018 at 1:33
          PM eric--- via Shop-talk &lt;<a
            href="mailto:shop-talk@autox.team.net";
            moz-do-not-send="true">shop-talk@autox.team.net</a>&gt;
          wrote:<br>
        </div>
        <blockquote class="gmail_quote" style="margin:0px 0px 0px
          0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><font
            size="2" face="sans-serif">I'm making a piece of furniture
            that needs
            to have a rounded 'dish' cut into it.  Like a cove cut on a
            board,
            but just in a circle.  Think of a change plate where there
            is a bowl
            cutout on a board.</font>
          <br>
          <br>
          <font size="2" face="sans-serif">The cut would look like if
            you had a
            table saw blade about 1/2" out of the table, then put a
            piece of wood
            straight down on it and twisted it in a circle.  I know that
            wouldn't
            work (and would be HUGELY unsafe.)</font>
          <br>
          <br>
          <font size="2" face="sans-serif">Here is an image of the cut I
            am trying
            to make (there are two of them on this valet..</font>
          <br>
          <br>
          <a
href="https://www.etsy.com/listing/229799235/mens-valet-mens-valet-change-dish-modern";
            target="_blank" moz-do-not-send="true"><font color="blue"
              size="2" 
face="sans-serif">https://www.etsy.com/listing/229799235/mens-valet-mens-valet-change-dish-modern</font></a>
          <br>
          <br>
          <font size="2" face="sans-serif">Anyone know how to do that? 
            I
            can only find ways to make a cove lengthwise in a board.  
             The
            piece isn't small enough to put in a lathe (but I thought
            about making
            an insert, and that is my last resort, but I would rather
            not do that.)</font>
          <br>
          <br>
          <font size="2" face="sans-serif">Thanks in advance!<br>
            <br>
            Sent from my Commodore 64 on a 2400 Baud Modem.<br>
            Tech Viper<br>
            "Be as beneficent as the sun or the sea, but if your rights
            as a rational
            being are trenched on, die on the first inch of your
            territory." Ralph
            Waldo Emerson 
</font>_______________________________________________<br>
          <br>
          <a href="mailto:Shop-talk@autox.team.net"; target="_blank"
            moz-do-not-send="true">Shop-talk@autox.team.net</a><br>
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href="http://autox.team.net/mailman/options/shop-talk/pethier7@gmail.com";
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          <br>
        </blockquote>
      </div>
      <br clear="all">
      <div><br>
      </div>
      -- <br>
      <div dir="ltr" class="gmail_signature">
        <div dir="ltr">
          <div>
            <div dir="ltr">
              <div>
                <div dir="ltr">
                  <div>
                    <div dir="ltr">
                      <div><span
                          
style="color:rgb(0,0,0);font-family:verdana,geneva,lucida,&quot;lucida
grande&quot;,arial,helvetica,sans-serif;font-size:12.8px;background-color:rgb(239,239,239)">Phil
                          Ethier West Side Saint Paul Minnesota USA</span><br>
                      </div>
                      <div><span
                          
style="color:rgb(0,0,0);font-family:verdana,geneva,lucida,&quot;lucida
grande&quot;,arial,helvetica,sans-serif;background-color:rgb(239,239,239)">1973
                          Triumph Stag LE22439UBW "uncle jack", Sapphire
                          Blue</span><br
                          
style="color:rgb(0,0,0);font-family:verdana,geneva,lucida,&quot;lucida
grande&quot;,arial,helvetica,sans-serif;background-color:rgb(239,239,239)">
                        <span
                          
style="color:rgb(0,0,0);font-family:verdana,geneva,lucida,&quot;lucida
grande&quot;,arial,helvetica,sans-serif;background-color:rgb(239,239,239)">2004
                          Suburban 8.1, Sport Red</span><br
                          
style="color:rgb(0,0,0);font-family:verdana,geneva,lucida,&quot;lucida
grande&quot;,arial,helvetica,sans-serif;background-color:rgb(239,239,239)">
                        <span
                          
style="color:rgb(0,0,0);font-family:verdana,geneva,lucida,&quot;lucida
grande&quot;,arial,helvetica,sans-serif;background-color:rgb(239,239,239)">2005
                          Lotus Elise, Bordeaux Red Pearl</span></div>
                      <div><span
                          
style="color:rgb(0,0,0);font-family:verdana,geneva,lucida,&quot;lucida
grande&quot;,arial,helvetica,sans-serif;background-color:rgb(239,239,239)">2006
                          Gulf Stream Conquest Super C, 8.1, White</span></div>
                      <div>2017 Ford Fusion SE 2.0 Turbo, Oxford White<br
style="color:rgb(0,0,0);font-family:verdana,geneva,lucida,&quot;lucida
grande&quot;,arial,helvetica,sans-serif;background-color:rgb(239,239,239)">
                        <a href="http://www.mnautox.com/";
                          
style="color:rgb(0,24,57);font-family:verdana,geneva,lucida,&quot;lucida
grande&quot;,arial,helvetica,sans-serif;background-color:rgb(239,239,239)"
                          target="_blank" 
moz-do-not-send="true">http://www.mnautox.com</a><br>
                      </div>
                    </div>
                  </div>
                </div>
              </div>
            </div>
          </div>
        </div>
      </div>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
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      <pre wrap="">_______________________________________________

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